Burner for furnaces



I. E. HAUSFELD.

BURNER FOR FUHNACES.

APPLICATION FILED APH. 3, 1920.

1,378,95 1 Patented May 24, 1921.

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VJOSEPH E. HAUSFELD, 0F CINCINNATI, OHIO.

:BURNER FOR FURNACES.

Specification of Letters Patent.

Patented May 24, 1921.

Original application filed December 26, 1917, Serial No. 208,776.y Divided and this application filed April 3, 1920. Serial No. 371,092.

To all whom t may Concern.'

Be it known that I, J osnrri E. HAUsFELp, a citizen of the United States, and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Burn- -gas or oil as a fuel, in such a furnace so that at a moments notice the gas can be turned off and liquid fuel substituted without in any way modifying or changing theapparatus. This is accomplished Iby utilizing an oil pump in connection with the blower for furnishing a proper mixture and: forced draftv when either gas or liquid fuel is used.

These objects and other advantages to be noted I accomplish by that certain construction and arrangement of parts to be hereinafter more specifically pointed out and claimed.

In the drawings, which illustrate one construction of my improved furnace as the preferable construction,

Figure 1 is a plan view of the heating unit for eitheroil or gas.

Fig. 2 is a side elevation of the same, partly in section, on the lines 2-2 of Fig. 1.

Fi 3 is a detail elevation of the oil spray nozz e. I

The furnace may be of any desired nature and a corner thereof is shown at 1 held in a trunnion 1() and barring a fuel inlet 31.

Mounted on a bracket 39 secured to the standard 12 is a blower casing 26 for maintaining a proper gas mixture and-the necessary forced draft. the gas being supplied tlirbugh the gas inlet pipe 33. rl`he outlet pipe 27 from the blower is connected to the truiiiiion extension 10 formed with a cored* out recessl 28 by a rcvoluble coupling 29 and thence with the conduit 32, which bends upwardly to a point above the center of the furnace and then downwardly into the flared out open mouth 31, which is funnel-sliaped and which as shown flares partly upwardly and partly downwardly although this forms no part of my invention herein.

rPhe blower is preferably driven by a motor 34, the shaft of which carries a pinion which is arranged to mesh with the gear 36 operating an oil pump 37. The base plate 3-8 of the housing 36a of the gear 36 isA slotted at 38b and secured by bolts 38 to a plate which is formed as part of the blower casing 'so that the pump can be shifted to disconnect the pinion 35 from the pump gear 36 as shown in Fig. 1, or to connect the gears as indicated in'Fig. 2. The pump 37 is mounted on a bracket 37 secured to the housing 36 above mentioned. A pressure gage 4l() is provided for the pump as shown, and the exhaust or over* flow from the pump taken off by the pipe 40a. The oil is supplied to the pump through pipe 39 and from the pump to the spray nozzle il, projecting into the flaring opening 31 through a flexible hose pipe 42, or the like, or with iron pipe as desired. 1When gas -is used as a fuel, the pump is disconnectedby sliding the pump base 38 along thc base, `plate-31, thereby separating the gears 35, 36,.-which leaves the pump inactive. Shouldthe gas supply fail, or for other reasons 'oil is desired to be substituted, in a moments notice the oil pump can be connected and the oil delivered in a fine spray at the oil nozzle 41, where it is properly mixed with air from .the blower. Having thus described my invention, what I claim as new and desire 'to secure by Letters Patent is 1. The combination with a furnace having a fuel inlet, of a blower, and means for operating same to furnish a forced draft through said inlet, an oil pump operatively connected to said blower, and separate gas and oil conduits to said fuel inlet `wherebv either gaseous or liquid fuel may be utilized.

The combination with a furnace having a fuel inlet, of a blower, and means for operating saine to furnish a forced draft through said inlet` an oil pump operatively connected to said blower with means for disconnecting the same, and separate gas and oil conduits to said fuel inlet, whereby either gaseous o1' liquid fuel may be utilized.

3. The combination with a furnace having a fuel inlet, of a blower, and means for operating same to furnish a forceddraft through said inlet, an oil pump, with gearing intermediate the pump and blower, and means for shifting the oil pump to discon- 10 neet the gearing, and separate gas and oil conduits to said fuel inlet, whereby either gaseous or liquid fuel muy be utilized.

JOSEPH E. HAUSFELD. 

